Pressure-gage for spraying-tanks.



A. J. TYLER.

PRESSURE GAGE FOB. SPRAYING TANKS.

APPLIOATION, FILED JULY 28. 1911.

1,047,719; I Patented 0901x1912.

| WITNESSES. I [NYE/ TOR WM- a I [1708) UNITEl) STATES PATENT orrioE.

AARON J. TYLER, or nocnnsrna, NEW YORK, as'sxcnon. r0 1*. s nmwnnn'or snon'rsvmn, NEW YORK.

PRESSURE-GAGE 'FQB SPRAYING-TANKS.

Specification of imminent. t t 17, 1912, Application filed July 28, 1911. Serial No. 841,074.

To all whom it may concern: Be it-known that I, AARON J. TYLER, citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Pressure-Gages for Spraying-Tanks, of which the following 1s a specification.

. This invention relates to pressure gagest for portable automatic spraying tanks of that general class shown and described in my pending application filed in the United States Patent Ofiice on' the 31st day of March 1911, under Serial No. 618,153.

In charging the spraying tank shown in my pending application referred to, the tank is placed on end and air under pressure forced withinthe tank by means of a suitable hand operated pump, the spraying solution being subsequently introduced into said tank which efiects a further. compression of the air so thatwhen the tank is placed. in a horizontal position and the device operated, the spraying solution will be thoroughly atomized. Owing to the nature of the spraying mixture or solution used in this class of tanks, considerable difficulty has been experienced in attaching a pressure gage thereto, as the foreign matter in the mlxture or'solution has a tendency to enter Y .the tube leading to the ga e and cake or solidify therein, thus inter ering' with the proper working of the gage and rendering the latter practically useless after a short. period of service.

' The primary object of the present invention is to provide a gage of simple and durable construction capable of being readily attached to one end of a spraying tank and by means of which the air pressure may be conveniently indicated, when the tank is ineither a horizontal or vertical position with-- out liability of the spraying solution entering' the gage and obstructing or otherwise interfering with the operation thereof.

A further object is to provide a gage including a bent tube, one end of which is operatively connected with the body of the gage and the other end thereof extended to a. point near one side wall of the sprayingv tank and provided with a screen, the bend of said tube being adapted to contain -water or other liquid, which latter forms a water seal for the joints of the gage and tube and also serves to protect the delicate operating mechanism of the gage from the deleterious action of the sprayin solution. A still furtherofiject of the invention is generally to improve this class of devices so as to increase theirutility, durability and and the merits thereof, reference is to be had to the following description and accompanying drawing, in which:

' .Figure 1 is a front elevation of a spraying tank provided with a pressure gage con-- structed in accordance with my invention;

Fig. 2 is a longitudinal sectionalview of one end of the tan showing the gage in position thereon; Fig. 8 is a top plan view of the bent tube and supporting bracket detached, a bottom plan view of, the bracket beingshown immediately below the same.

' Corresponding and like parts are referred to in the following description and indicated in all the views 0 the drawing by the same reference characters.

The improved pressure gage forming the subject matter 0 the present invention is principally designed for attachment to the tanks or containers of automatic spraying apparatus and by way of illustration is shown in connection with of the construction shown in my prior application above referred to, in which 5 designates the tank or container and 6 one head thereof, the latter being preferably concave in cross section and having its marginal edge retained in position on the tank by bending the side walls thereof, an indicated at 7.

The gage comprises a shell or casing 8 having its rear portion provided with a threaded extension 9 and its front portion provided with a graduated dial 10, over which is movable a hand or pointer 11 for indicating the pressure of air within the tank-0r container. Bearing against the convex face 12 of the head 6, is a. supporting bracket 13 having a circumferential fl 14 for engagement with the head 6 and a centrally disposed nipple 15 preferably arranged concentric with the flange 14. The

interior wall ofthe nipple 15, at the outer construe- 65 r a spraying tank 90 fiatface of the bracket 13, is threaded for engagement with the extension 9, while the interior wall of the nipple, at the inner end thereof, is' also threaded for engagement with the correspondingly threaded. end of a pipe or tube indicated at 16. The outer wall of the nipple 15 is provided with a square shoulder 17 which bears. against the adjacent face of the head (Sand is held in a screen 21 which fits over the terminal of the tube and serves to prevent foreign particles in the spraying mixture or solution from entering the tube and obstructing or otherwise interfering with the .operation of the gage. The body of the gage 8 is preferablyfastened directly on the head of the tank or container 5 so that when the tank is inverted, that is to say, placed in an up-. right or vertical position and the pump (not shown) actuated to force compressed. air

. within the tank, the operator, by merely liquid seal for thejoints of the gage and; tube and also serves to glancing at the dial 10, mayaseertain the pressure of air within saidl tank. It will here be noted that the flared and of the tube.

or pipe 16 terminates justibelow the upper 'portion of the tank or container when the latter is held in a horizontal position so as to kee the intake of the gage asfar as possible om the level of the spraying mixture or solution in the tank. The bend. 19

of the gage tube is preferably filled with purewate'r, which wate'r forms in effect a rotect thedelicate operating mechanism 0 said gage. Thus "it will be seen that the screen 21' serves to foreign particles into the gage tube; w ile the water prevent the entrance ofhea in the bend of said tube, notonly forms a liquid seal, but also serves to. prevent the body of the mixture or solution-fromafiect ingthe operating mechanism of the dial. It will also beobserved that. when the tank is placed on end, withthe uppermost, as in the act of forcing airt crew, the bend 19 of the tube will form in effect a trap, and that when the tank is placed in a henzontal position and used for spraying purposes, a ortion of the liquid in the bend I 19.will ow to the body of the gage and thus prevent leakage of air, as before stated. It will of course be'understood that the air facts directly on the body of water or liquid .isclaimed asne in the tube, which wateror liquid in turn serves to actuate the gage.

Having thus described the invention, what is: 1. The combination with a spraying tank, of a pressure gage secured upon the end of the tank, and a tube within the tank having one end connected directly to the gage, the

opposite end of the tube being open and the tube being doubled on itself to approach the end of the tank and then bent laterally to terminate adjacent the wall of the tank.

2. The combination with a spraying tank having an end wall, of a bracket hearing against. the outer face of said end wall and provided with a threaded opening, a pressure gage having a stem threaded in said open ing,.-an'd a tube connected with the bracket and having its free end extended laterally within the tank to a point near one wall thereof, the intermediate portion of the tube being bent to form a p ket for a sealing liquid. i

3. The combination with a spraying tank having a head, of a bracket having an annular axially extending flange for engage- -ment with the head and a central nipple extending through the head,- a pressure gage secured in the outer end of the nipple, and a tube secured in the iime'r end ofthe nipple and having its intermediate portion bent laterally and its free end extended within the t nk to a point near one wall thereof.

4.. %he combination with a spraying tank having a head, of a bracket having an axial annular flange bearing against the outer face of the head and provided with an interiorly' and exteriorly threaded nipple,

there being an annularshoulder formed on 'the nipple for contact with the outer face 'of the head of the tank, a pressure gage having a threaded extension engaging some of the interior t readson'the bracket, 2. tube having one end thereof engaging other of the interior threads on the bracket, said tube having its intermediate portion bent laterally and'its free end extended within the tank to a point near one wall thereof, a

screen forming a closure for the free end of the tube, and a clamping nut engaging the exterior threads on the nipple and bearing against the concave face of the head ofthe tank for forcing said head into engagement with the shoulder.

In testimony whereof, I aflix my signature in presence of two witnesses.

AARON J. TYLER. [1,. s.]

Witnesses:

HERBERT LEARY, -ADELAID A. MILLER. 

